/*
 * Copyright 2012-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.mountain.dubbo.bean;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.stereotype.Component;
import org.springframework.util.ReflectionUtils;

/**
 * 
 * 	功能说明：Bean创建生命周期
 * 
 *	功能作者：彭晋龙 ( 联系方式QQ/微信：1095071913 )
 *
 *	创建日期：2019-09-06 : 20:58:00
 *
 *	版权归属：蓝河团队
 *
 *	协议说明：Apache2.0（ 文件顶端 ）
 *
 */

@Component
public class GenericReferenceProcessor implements BeanPostProcessor {
	
	@Autowired
    private ConfigurableListableBeanFactory configurableBeanFactory;
	
    //bean初始化方法调用前被调用
    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        this.scanGenericReferenceAnnotation(bean);
        return bean;
    }
    //bean初始化方法调用后被调用
    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        return bean;
    }
    
    protected void scanGenericReferenceAnnotation(Object bean) {
        this.configureFieldInjection(bean);
    }

    private void configureFieldInjection(Object bean) {
        Class<?> managedBeanClass = bean.getClass();
        ReflectionUtils.FieldCallback fieldCallback = new GenericReferenceFieldCallback(configurableBeanFactory, bean);
        ReflectionUtils.doWithFields(managedBeanClass, fieldCallback);
    }
}